狼群视频在线

氣門挺桿簡介

氣門挺桿。氣門挺桿的作用如下：

1、為了保證氣門關閉嚴密，會在氣門桿端與氣門驅動件之間留有適當的間隙，稱為氣門間隙；

2、若氣門間隙調整不當就會使發動機運行不正常的，過大會影響氣門的開啟量，氣門升程減少引起進氣不足，排氣不徹底，過小會引起氣門關閉不嚴引起漏氣，造成動力下降；

3、所以為了避免氣門間隙調整不當引起的麻煩，一般高速發動機上都會使用可自行調整氣門間隙的液力挺桿。

氣門挺桿的作用

汽(qi)車(che)的(de)(de)(de)(de)(de)(de)發(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)相當于(yu)汽(qi)車(che)的(de)(de)(de)(de)(de)(de)心臟。發(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)故障(zhang)也是困擾車(che)友的(de)(de)(de)(de)(de)(de)問題，氣(qi)(qi)門挺(ting)(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)是發(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)的(de)(de)(de)(de)(de)(de)重(zhong)要(yao)(yao)部(bu)件。接下來(lai)就讓典邦給(gei)大家(jia)介(jie)紹(shao)一下氣(qi)(qi)門挺(ting)(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)的(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)吧！氣(qi)(qi)門挺(ting)(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)的(de)(de)(de)(de)(de)(de)功能(neng)，氣(qi)(qi)門挺(ting)(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)簡(jian)介(jie)-功能(neng)也是用(yong)于(yu)推動(dong)(dong)(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)門打開的(de)(de)(de)(de)(de)(de)裝置。因為(wei)早(zao)期(qi)發(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)中使用(yong)的(de)(de)(de)(de)(de)(de)這種裝置形狀像(xiang)一根細(xi)桿(gan)(gan)(gan)(gan)，所以被稱(cheng)為(wei)氣(qi)(qi)門挺(ting)(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)。它的(de)(de)(de)(de)(de)(de)主(zhu)要(yao)(yao)功能(neng)是將(jiang)凸(tu)(tu)輪(lun)的(de)(de)(de)(de)(de)(de)旋轉運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)轉化(hua)為(wei)往復運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)。但這種結構的(de)(de)(de)(de)(de)(de)發(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)凸(tu)(tu)輪(lun)軸(zhou)一般(ban)不(bu)布置在(zai)發(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)頂部(bu)。隨(sui)著現代汽(qi)車(che)發(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)技(ji)術的(de)(de)(de)(de)(de)(de)發(fa)展(zhan)，越(yue)來(lai)越(yue)多的(de)(de)(de)(de)(de)(de)汽(qi)車(che)發(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)采用(yong)頂置凸(tu)(tu)輪(lun)軸(zhou)結構，其中傳(chuan)統的(de)(de)(de)(de)(de)(de)長(chang)氣(qi)(qi)門挺(ting)(ting)(ting)(ting)柱基本取消，取而代之的(de)(de)(de)(de)(de)(de)是由凸(tu)(tu)輪(lun)軸(zhou)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)更(geng)加緊湊的(de)(de)(de)(de)(de)(de)液(ye)壓(ya)(ya)挺(ting)(ting)(ting)(ting)柱，或(huo)者凸(tu)(tu)輪(lun)軸(zhou)直接驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)門搖臂來(lai)控制氣(qi)(qi)門的(de)(de)(de)(de)(de)(de)開閉(bi)。液(ye)壓(ya)(ya)杠桿(gan)(gan)(gan)(gan)主(zhu)要(yao)(yao)由柱塞、單(dan)向閥(fa)(fa)(fa)和單(dan)向閥(fa)(fa)(fa)彈(dan)簧組(zu)成。液(ye)壓(ya)(ya)桿(gan)(gan)(gan)(gan)始終與凸(tu)(tu)輪(lun)軸(zhou)接觸，并且無間(jian)隙運(yun)(yun)行。在(zai)挺(ting)(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)內部(bu)，液(ye)壓(ya)(ya)用(yong)于(yu)調整間(jian)隙。液(ye)壓(ya)(ya)挺(ting)(ting)(ting)(ting)柱主(zhu)要(yao)(yao)由柱塞、單(dan)向閥(fa)(fa)(fa)和單(dan)向閥(fa)(fa)(fa)彈(dan)簧組(zu)成。止回閥(fa)(fa)(fa)用(yong)于(yu)儲存或(huo)釋放油。通過改(gai)變挺(ting)(ting)(ting)(ting)柱腔內的(de)(de)(de)(de)(de)(de)油壓(ya)(ya)，可(ke)以改(gai)變液(ye)壓(ya)(ya)挺(ting)(ting)(ting)(ting)柱的(de)(de)(de)(de)(de)(de)工作(zuo)(zuo)長(chang)度(du)，從而自動(dong)(dong)(dong)(dong)(dong)(dong)(dong)調整氣(qi)(qi)門間(jian)隙。

長城嘉譽簡介

長城(cheng)嘉譽MPV，英(ying)文(wen)名COWRY，是長城(cheng)自主研發的(de)第一款MPV，定位于企業(ye)中(zhong)高(gao)端商務用車，5門7人座(zuo)，長4574 mm，寬1704 mm，高(gao)1845 mm，整車線條飽滿流暢，視覺沖擊力強，尾翼與車身、大(da)(da)燈(deng)渾然一體。 其(qi)(qi)突出特點是：動(dong)力充沛，技術先(xian)進，內飾(shi)風格新(xin)穎，外觀時尚、空(kong)(kong)間(jian)(jian)寬敞駕乘舒適。內部空(kong)(kong)間(jian)(jian)相對于商用MPV較小(xiao)，相對于家用MPV空(kong)(kong)間(jian)(jian)較大(da)(da)，國內大(da)(da)小(xiao)適中(zhong)的(de)MPV市(shi)場恰恰是空(kong)(kong)白(bai)點，而長城(cheng)嘉譽比(bi)較適中(zhong)空(kong)(kong)間(jian)(jian)，填補了這一區間(jian)(jian)MPV市(shi)場的(de)空(kong)(kong)白(bai)。2.0升的(de)排量使其(qi)(qi)具備節能環保的(de)先(xian)天優勢(shi)，堪稱(cheng)商務MPV市(shi)場的(de)典范之作。